package vivo;

import java.util.Scanner;

public class test {
    public class Node {
        public int data;
        public Node next;

        public Node(int data) {
            this.data = data;
        }
    }

    public static Node mergeList(Node node1, Node node2) {
        Node head = null;

        return head;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int num = Integer.parseInt(in.nextLine());

        for (int i = 0; i < num; i++) {
            String str = in.nextLine();
            String[] arr = str.split(" ");
            for (int j = 0; j < arr.length; j++) {

            }
        }

        in.close();

    }
}